<template>
	<view v-if="goods_info.goods_name" class="goods-detail-container">
		<!-- 轮播图 -->
		<view class="swiper">
			<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
				<swiper-item v-for="(item,index) in goods_info.pics" :key="index">
					<image :src="item.pics_big" @click="preview(index)"></image>
				</swiper-item>
			</swiper>
		</view>
		<!-- 商品信息 -->
		<view class="goods-info-box">
			<!-- 价格 -->
			<view class="price">￥{{goods_info.goods_price}}</view>
			<!-- 信息 -->
			<view class="goods-info-body">
				<!-- 商品名字 -->
				<view class="goods-name">{{goods_info.goods_name}}</view>
				<!-- 收藏 -->
				<view class="collection">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<!-- 运费 -->
			<view class="yf">快递：免运费--{{cart.length}}</view>
		</view>
		
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		
		<!-- 商品导航组件 -->
		<view class="goods-nav">
			<uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
		</view>
	</view>
</template>

<script>
import { mapState , mapMutations , mapGetters } from 'vuex'
	
	export default {
		computed:{
			...mapState('m_cart',['cart']),
			...mapGetters('m_cart',['total'])
		},
		watch:{
			//定义total监听器
			total:{
				//handler属性定义监听器
				handler(count){
				const result = this.options.find(x=>x.text==="购物车")
				if(result){
						result.info=count
					}
				},
				//声明页面初次加载后立即调用
				immediate:true
			}
			
		},
		data() {
			return {
				goods_info:{},
				 options: [{
							icon: 'shop',
							text: '店铺',
						}, {
							icon: 'cart',
							text: '购物车',
							info: 0
						}],
					    buttonGroup: [{
					      text: '加入购物车',
					      backgroundColor: '#ff0000',
					      color: '#fff'
					    },
					    {
					      text: '立即购买',
					      backgroundColor: '#ffa200',
					      color: '#fff'
					    }
					    ]
			};
		},
		onLoad(options) {
			const goods_id=options.goods_id
			this.getDetail(goods_id)
		},
		methods:{
			...mapMutations('m_cart',['addToCart']),
			async getDetail(goods_id){
				const {data:res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
				if(res.meta.status!==200) return uni.$showMsg()
				
				res.message.goods_introduce=res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ').replace(/webp/g,'jpg')
				
				this.goods_info=res.message
			},
			preview(index){
				uni.previewImage({
					current:index,
					urls: this.goods_info.pics.map(i=>i.pics_big)
				})
			},
			onClick (e) {
				if(e.content.text==="购物车"){
					uni.switchTab({
						url:'/pages/cart/cart'
					})
				}
			},
			buttonClick (e) {
				if(e.content.text==="加入购物车"){
					const goods = {
						goods_id:this.goods_info.goods_id,
						goods_name:this.goods_info.goods_name,
						goods_price:this.goods_info.goods_price ,
						goods_count:1 ,
						goods_small_logo:this.goods_info.goods_small_logo ,
						goods_state:true
					}
					this.addToCart(goods)
				}
			}
		}
		 
	}
</script>

<style lang="scss">
	swiper{
		height: 750rpx;
		image{
			width: 100%;
			height: 100%;
		}
	}
	.goods-info-box{
		margin: 10px;
		margin-right: 0;
		
		
		.price{
			color: #C00000;
			font-size: 18px;
			margin: 10px 0;
		}
		.goods-info-body{
			display: flex;
			justify-content: space-between;
			.goods-name{
				font-size: 15px;
				margin-right: 5px;
			}
			.collection{
				width: 120px;
				font-size: 15px;
				display: flex;
				flex-direction: column;
				align-items: center;
				justify-content: center;
				border-left: 1px solid #efefef;
				color: gray;
			}
		}
		.yf{
			font-size: 15;
			color: gray;
			margin: 10px 0;
		}
		
	}
	.goods-nav{
		position: fixed;
		bottom: 0;
		left: 0;
		width: 100%;
	}
	.goods-detail-container{
		padding-bottom: 50px;
	}
</style>
